Plowshare



(fioModeL) I 3Sheets-Sheet 1. W. R. RUSSELL.

PLOWSHARE.

No.472,400. PatentedApr. 5, 1892.

(No Model.) 3 Sheets8heet '2.

W. R. RUSSELL. PLOWSHARE.

No. 472,400. Patented Apr. 5, 1892.

' (N b 1.) I 'Sheet-Shei; 3.

' W. R. RUSSELL;

PLOWSHARE Patented Apr. 5, 1892.

UNITED STATES PATENT OFFICE.

WILLIAM REID RUSSELL, OF ADELAIDE, SOUTH AUSTRALIA, ASSIGNOR OF ONE-HALFTO ERNEST EYSTON l-IARROLD, OF SAME PLACE, AND WILLIAM HEITHERSAY, OFPETERSBURG, SOUTH AUSTRALIA.

PLOWS HARE.

SPECIFICATION forming part of Letters Patent No. 472,400, dated April 5,1892.

Application filed February 18, 1891, Serial No, 381,845, (No model.)Patented in Victoria August 15, 1890, No 7,997; in New South WalesAugust 18, 1890, No. 2,430; in Queensland August 19, 1890, No. 1,100; inNew Zealand August 28,1890, No. 4,565; in England September 15, 1890,N0,14,530; in France October 23, 1890, 170 209,077; in Germany October23, 1890, No. 58,397; in Belgium October 25, 1890, No- 92,476; in Capeof Good Hope November 22,1890; in South Australia December 4, 1890,11'0.1,799; in Canada February 17, 1891, No, 36,639, and in ArgentineRepublic July 29,1891,N0.1,034.

To all whom it may concern.-

Be it known that I,WILLIAM REID RUSSELL, engineer, a subject of theQueen of Great Britain, and a resident of Adelaide, in the 5 Colony ofSouth Australia, have invented a certain new and useful ImprovedPlowshare, (for which I have obtained Letters Patent in Great Britain,No.'14,530, dated September 15, 1890; inCanada, No. 36,639, dated Feb-[0 ruary 17, 1891; in France, No. 209,077, dated October 23, 1890; inBelgium, No. 92,476, dated October 25, 1890; in Germany, No. 58,397,dated October 23, 1890; in Cape of Good Hope, dated November 22, 1890;in Argentine Republic, No. 1,034, dated July29, 1891; in Victoria, No.7,997,-dated August 15, 1890; in New South Wales, No. 2,430, datedAugust 18, 1890; in Queensland, No. 1,100, dated August 19, 1890; in NewZealand, No. 4,565, dated August 28, 1890, and in South Australia, No.1,799, dated December 4, 1890,) consisting of a reversible blade with aplug fitting into a corresponding recess in a socket-piece made andvaried to fit different kinds of plows, of which the following is aspecification, reference being had to the accompanying drawings.

The object of this invention is to enable a reversible share to beapplied to a plow having a foot of the form substantially shown in thedrawings, and more particularly described hereinafter. The reversibleshares which have been hitherto manufactured and used under what isknown as Heithersays or Heithersay and Harrolds patents have required aspecially-constructed foot projected not in the line of progression, butat an angle of forty-five degrees thereto, and it has been necessarybefore the share could be used on 40 existing plows to have a new footconstructed and attached thereto. I-Ience, although the reversible sharehas been found to answer well where used, the expense and inconvenienceof altering the feet of plows at present in use has been found adrawback to its general adoption. To overcome this difficulty in regardto plows of the usual patterns is the object of this invention. It isaccomplished by casting or making the share in two parts: first, asocket-piece, which may be of shape to suit any approximately straightfoot and having at its outer part a recess, and, secondly, a blade ofequal Shape at both points and having a central projecting part called aplug which fits into the recess provided in the Socket-piece.

In order that my invention may be fully understood, I will now describethe same by reference to drawings, in which the same letters refer tosimilar parts.

Figure 1 is aplan about quarter-size of share with portion of mold-boardstandard and P- foot. Fig. 2 is a plan, partly in section, showing themiddle of the share and the reversible blade with projecting part orplug. Fig. 3 is a plan of the socket-piece detached. Fig.

4 is a plan of the reversible share-blade detached. Fig. 5 is a planview, partly in sec tion, showing the application of the invention to aD-foot. Fig. 6 is a similar view showing the same applied to a V-foot.Fig. 7 is a similar view-showing the P-foot with the wing shortened byreducing the width of the plug.

A represents the leg or standard with foot A of the pattern known asP-foot and in common use.

K B is the socket-piece, which is formed with a socket B to fit the footA. This socketpiece will be of the Shape internally to fit the foot Aand externally to suit the plow and 8c the work required. It is providedat the outer side with a recess approximately centrally situated andformed to receive a corresponding projecting part or plug of theshare-blade C. The share-blade O is constructed of such shape and extentthat, together with the socket-piece, the two form the equivalent of theordinary share suitable for a P or other foot.

0 is the plug constructed and shaped to fit into the recess B which isshaped so as to fit round the toe of the foot A, as shown in thedrawings. By this means it is allowed to be made of sufficient strengtheven in cast metal and receives a part of the hearing from the foot,giving strength and solidity. The other end of the plug at the same timefitting into the curve of the recess, adds further strength andcompactness to the combined share. The blade may be additionally securedin position by a pin D, passing through suitable holes in thesocket-piece B and the share-blade G. The bottom of the foot A and thebottom of the socket-piece B and share-blade O are parallel with thesurface of the ground, or may, if preferred for hard ground, be soarranged as to give a slight dip to the point or nose of the share. Thecutting-edge of the share lies between the letters m and pand is atanangle of forty-five degrees, or thereabout, with the direction ofprogression of the plow or at the usual angle with the plow in use.

The shares consisting of the socket-piece B and the share-blade C may bemanufactured of cast-iron, malleable iron, or east-steel, or thesocket-piece may be made of one metal and the blades of another, and thesocketpiece will last a great length of time, while the blade, being thewearing part, can be renewed. The share is used as an attachment belowand in front of a mold-board, such as K, usually found in thedescription of plow in which renewable shares can be advantageouslyused. The long and short dotted line shows the outline of the usualshare.

In operation, when the share has been used for a time, the point m willbe worn blunt and would in the ordinary plowshare have to be sharpened,involving great delay, or else a new share would have to be substituted.By my invention the point 1), having become sharpened by the action ofthe plow, the pin D is knocked out, the share-blade O is turned over andreversed, so that the point 1) takes the place of the point m, and thepoint m takes the place of the point p. The pin is replaced and the plowset to work again. By

the time the point 1) gets blunt the point on has been again sharpenedand the reversal takes place again, and so on until the share is wornclose up to the socket. The cuttingedge of the blade C maybe eitherstraight or slightly rounded, if so preferred, to suit differentrequirements of soil or circumstances.

I have hitherto described the application of my invention to a P-foot.It may be applied to nearly every other kind of approximately straightplow-feet, such as those in ordinary use for plows and similarimplements. In Fig. 5 I have shown its application to a D-foot, and inFig. 6 to a V R l, and in other cases a slight variation will have to bemade in the shape of the socket-recess and plug to suit the style offoot.

In Fig. 7 I have shown the P-foot with the wing shortened by reducingthe width of the plug (3 I do not limit myself to the exactconfigurations and details of construction herein set forth.

Vhat I claim is 1. In a plow, the combination, with a plowfoot having anapproximately straight outer face and central or nearly-central recess,of a reversible share-blade having a projection or plug 0 provided withduplicate recesses to receive the foot, substantially as described.

2. In a plow, the combination, with a plowstandard A, having a foot A,of a reversible share having a plug or projection C provided withduplicate recesses adapted to fit the plow-foot interchangeably, saidplug having a bolt-opening D, substantially as described.

In testimony'whereof I have hereunto signed my name in the presence oftwo subscribing witnesses.

\VILLIAM REID RUSSELL.

Witnesses:

CHARLES N. COLLISON, Patent Agent, Adelaide.

FREDERICK JOHN WILsoN, Cllerlczto Coll'ison d2 00., Patent Agents, Ade--CLZ( '8.

